1 <?xml version="1.0" encoding="iso-8859-1"?>
2 <!DOCTYPE article PUBLIC "-//FreeBSD//DTD DocBook XML V5.0-Based Extension//EN"
3 "../../../share/xml/freebsd50.dtd" [
4 <!ENTITY % release PUBLIC "-//FreeBSD//ENTITIES Release Specification//EN" "release.ent">
6 <!ENTITY % sponsor PUBLIC "-//FreeBSD//ENTITIES Sponsor Specification//EN" "sponsor.ent">
8 <!ENTITY % vendor PUBLIC "-//FreeBSD//ENTITIES Vendor Specification//EN" "vendor.ent">
11 <article xmlns="http://docbook.org/ns/docbook"
12 xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
15 <title>&os; &release.current; Release Notes</title>
18 <orgname>The &os; Project</orgname>
21 <pubdate>$FreeBSD$</pubdate>
39 <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
43 <legalnotice xml:id="trademarks" role="trademarks">
53 <para>The release notes for &os; &release.current; contain
54 a summary of the changes made to the &os; base system on the
55 &release.branch; development line. This document lists
56 applicable security advisories that were issued since the last
57 release, as well as significant changes to the &os; kernel and
58 userland. Some brief remarks on upgrading are also
63 <sect1 xml:id="intro">
64 <title>Introduction</title>
66 <para>This document contains the release notes for &os;
67 &release.current;. It describes recently added, changed, or
68 deleted features of &os;. It also provides some notes on
69 upgrading from previous versions of &os;.</para>
71 <para releasetype="current">The &release.type; distribution to
72 which these release notes apply represents the latest point
73 along the &release.branch; development branch since
74 &release.branch; was created. Information regarding pre-built,
75 binary &release.type; distributions along this branch can be
77 xlink:href="&release.url;">&release.url;</uri>.</para>
79 <para releasetype="snapshot">The &release.type; distribution to
80 which these release notes apply represents a point along the
81 &release.branch; development branch between &release.prev; and
82 the future &release.next;. Information regarding pre-built,
83 binary &release.type; distributions along this branch can be
85 xlink:href="&release.url;">&release.url;</uri>.</para>
87 <para releasetype="release">This distribution of &os;
88 &release.current; is a &release.type; distribution. It can be
89 found at <uri xlink:href="&release.url;">&release.url;</uri> or
90 any of its mirrors. More information on obtaining this (or
91 other) &release.type; distributions of &os; can be found in the
93 xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
94 &os;</quote> appendix</link> to the <link
95 xlink:href="&url.books.handbook;/">&os;
96 Handbook</link>.</para>
98 <para>All users are encouraged to consult the release errata
99 before installing &os;. The errata document is updated with
100 <quote>late-breaking</quote> information discovered late in the
101 release cycle or after the release. Typically, it contains
102 information on known bugs, security advisories, and corrections
103 to documentation. An up-to-date copy of the errata for &os;
104 &release.current; can be found on the &os; Web site.</para>
108 <title>What's New</title>
110 <para>This section describes the most user-visible new or changed
111 features in &os; since &release.prev;.</para>
113 <para>Typical release note items document recent security
114 advisories issued after &release.prev;, new drivers or hardware
115 support, new commands or options, major bug fixes, or
116 contributed software upgrades. They may also list changes to
117 major ports/packages or release engineering practices. Clearly
118 the release notes cannot list every single change made to &os;
119 between releases; this document focuses primarily on security
120 advisories, user-visible changes, and major architectural
123 <sect2 xml:id="security">
124 <title>Security Advisories</title>
130 <sect2 xml:id="kernel">
131 <title>Kernel Changes</title>
133 <para revision="260431">A new &man.sysctl.8;,
134 <literal>kern.panic_reboot_wait_time</literal>, has been
135 added, which allows controlling how long the system will wait
136 after &man.panic.9; before rebooting.</para>
138 <para revision="262861">The &man.vt.4; driver has been merged
139 from &os;-CURRENT. To enable &man.vt.4;, enter
140 <literal>set kern.vty=vt</literal> at the &man.loader.8;
141 prompt during boot, or add <literal>kern.vty=vt</literal> to
142 &man.loader.conf.5; and reboot the system.</para>
144 <para revision="263122">Support for &man.hwpmc.4; has been added
145 for &powerpc; 970 class processors.</para>
147 <para revision="263197">Support for ADT7460 and ADT7467 fan
148 controllers found in newer PowerBooks™ and
149 iBooks™ has been added to the &man.iicbus.4;
152 <para revision="263256">A panic triggered by removing
153 a &man.urtwn.4; device has been fixed.</para>
155 <para revision="263799">A potential deadlock in the &man.usb.4;
156 stack triggered by detaching USB devices that create character
157 devices has been fixed.</para>
159 <para revision="263869">Support for &amd; Family 16h sensor
160 devices has been added to &man.amdtemp.4;.</para>
162 <para revision="265610">The &man.uslcom.4; driver has been
163 updated to support 26 new devices.</para>
165 <para revision="266165">A kernel bug that inhibited proper
166 functionality of the <literal>dev.cpu.0.freq</literal>
167 &man.sysctl.8; on &intel; processors with Turbo
168 Boost™ enabled has been fixed.</para>
170 <para revision="266436">The &man.uart.4; driver has been
171 updated to include support for the &intel; Lynx Point
172 KT <acronym>AMT</acronym> serial port.</para>
174 <para revision="266594">The <literal>radeonkms(4)</literal>
175 driver has been updated to include 32-bit &man.ioctl.2;
176 support, allowing 32-bit applications to run on a 64-bit
179 <para revision="266718">A bug that would prevent
180 a &man.jail.8; from setting the correct IPv4 source address
181 with some operations that required
182 <literal>security.jail.allow_raw_sockets</literal> has been
185 <para revision="266911">The &man.hwpmc.4; driver has been
186 updated to support core events from the Atom™
187 Silvermont architecture.</para>
189 <para revision="268046">The &man.oce.4; driver has been updated
190 with vendor-supplied fixes for big endian support, and 20GB/s
191 and 25GB/s link speeds.</para>
193 <para revision="270630">The &os; virtual memory subsystem
194 has been updated to implement <quote>fast path</quote> for
195 the page fault handler.</para>
197 <sect3 xml:id="kernel-virtualization">
198 <title>Virtualization Support</title>
200 <para revision="259450">Support for µsoft; Hyper-V
201 has been added to &os;/i386 as loadable modules, however
202 not available in the <filename>GENERIC</filename> kernel
203 configuration.</para>
205 <para revision="261090">The &man.bhyve.4; hypervisor now
206 supports soft power-off functionality via the ACPI S5
209 <para revision="267399">Support for &os;/i386 guests has been
210 added to &man.bhyve.4;.</para>
212 <para revision="267427">Support for virtualized
213 <literal>XSAVE</literal> has been added to &man.bhyve.4;,
214 allowing guest operating systems to use
215 <literal>XSAVE</literal> and
216 <literal>XSAVE</literal>-enabled features, such as
217 <acronym>AVX</acronym>.</para>
219 <para revision="268932">The &man.bhyve.4; hypervisor now
220 supports booting from a &man.zfs.8; filesystem.</para>
222 <para revision="268933">A new driver, &man.virtio_random.4;,
223 has been added, which allows &os; virtual machines to
224 harvest entropy from the hypervisor.</para>
226 <para revision="270159">The &man.bhyve.4; hypervisor has been
227 synced with the version in &os;-CURRENT.</para>
229 <para>A number of enhancements have been added, and several
230 bug fixes, including:</para>
234 <para>Post-mortem debugging has been added when
235 a guest virtual machine exits with an
236 <quote><acronym>EPT</acronym> Misconfiguration</quote>
241 <para>The hypervisor &man.virtio.4; <acronym>API</acronym>
242 has been expanded from 32- to 64-bit.</para>
246 <para>Support for identifying capabilities of the virtual
247 <acronym>CPU</acronym> has been added.</para>
251 <para>Support for emulating legacy x86 task
252 switching has been added.</para>
256 <para>Support to list the VT-x features in base kernel
257 &man.dmesg.8; has been added.</para>
261 <para>Support for extended PCI configuration space
262 has been added.</para>
267 <sect3 xml:id="kernel-arm">
268 <title>ARM Support</title>
270 <para revision="259355">The <filename>WANDBOARD</filename>
271 kernel configuration file has been added.</para>
273 <para revision="265067">Boot devices may now be specified by
274 setting a u-boot environment variable. If a boot device is
275 not specified, the probe mechanism will be used. To specify
276 the boot device, set the
277 <literal>loaderdev=<replaceable>device</replaceable></literal>
278 u-boot environment variable.</para>
280 <para revision="266000">The <literal>nexus(4)</literal> driver
281 has been updated to include <quote>Flattened Device
282 Tree</quote> support, replacing the &man.fdtbus.4; driver
283 in most cases.</para>
285 <para revision="266105">The &man.gpioiic.4; and
286 &man.gpioled.4; have been merged from &os;-CURRENT.</para>
288 <para revision="266379">The <literal>ZEDBOARD</literal> kernel
289 configuration file has been updated to include
290 <acronym>SMP</acronym> support.</para>
293 <sect3 xml:id="boot">
294 <title>Boot Loader Changes</title>
296 <para revision="262701">A kernel selection menu has been added
297 to &man.loader.8;. If the <quote>beastie menu</quote> is
298 enabled, the kernel to boot may be selected from the kernel
299 selection menu. Additional kernels may be listed in
300 &man.loader.conf.5; as a comma- or space-separated list. By
301 default, <literal>kernel</literal> and
302 <literal>kernel.old</literal> are listed.</para>
305 <sect3 xml:id="proc">
306 <title>Hardware Support</title>
311 <title>Multimedia Support</title>
317 <sect4 xml:id="net-if">
318 <title>Network Interface Support</title>
320 <para revision="259453">Support for Ralink RT5370 and
321 RT5372 chipsets has been added to the &man.run.4;
324 <para revision="260120">Firmware for the &man.run.4; driver
325 has been updated to version 0.33.</para>
327 <para revision="261868">Support for the Ralink RT3593
328 chipset has been added to the &man.run.4; driver.</para>
330 <para revision="261972">The &man.nve.4; driver is now
331 deprecated, and the &man.nfe.4; driver should be used
334 <para revision="262137">Support for the &man.axge.4; driver
335 has been added. This driver supports the ASIX AX88178A
336 and AX88179 USB ethernet adapters. The AX88178A supports
337 USB 2.0, and the AX88179 supports USB 2.0 and 3.0.</para>
339 <para revision="262363">The &man.urndis.4; driver has been
340 imported from OpenBSD.</para>
342 <para revision="264866">Support for multiple
343 transmitter/receiver queues has been added to the
344 &man.vmx.4; driver.</para>
347 <para>The &os; guest operating system must have
348 <acronym>MSIX</acronym> enabled as a prerequisite for
349 multiple queues.</para>
352 <para revision="265345">Support for the ASUS USB-N10 Nano
353 wireless card has been added to the &man.urtwn.4;
356 <para revision="266212">Transmission checksum offloading has
357 been disabled for the RTL8168C and RTL8168CP chipsets in
358 the &man.re.4; driver for TCP and UDP frames. This is
359 due to a report of UDP datagrams with IP options
360 generating corrupt frames.</para>
362 <para revision="266578">Preliminary support has been added
363 to the &man.urtwn.4; driver for the Realtek RTL8188EUS and
364 RTL8188ETV chipsets.</para>
366 <para revision="267694">A bug in the fast receiver buffer
367 recycle path has been fixed in the &man.cxgbe.4;
370 <para revision="267849" contrib="vendor"
371 vendor="&chelsio;">The bundled &man.cxgbe.4; firmware for
372 T4 and T5 cards has been updated to version
375 <para revision="269196">The &man.em.4; driver has been
376 updated to version 7.4.2.</para>
378 <para revision="269975">The &man.ixgbe.4; tunables have been
379 renamed to match their &man.sysctl.8; counterparts:</para>
381 <informaltable frame="none" pgwide="0">
383 <colspec colwidth="1*"/>
384 <colspec colwidth="1*"/>
387 <entry>Old Name</entry>
388 <entry>New Name</entry>
394 <entry><literal>hw.ixgbe.enable_aim</literal></entry>
395 <entry><literal>hw.ix.enable_aim</literal></entry>
399 <entry><literal>hw.ixgbe.max_interrupt_rate</literal></entry>
400 <entry><literal>hw.ix.max_interrupt_rate</literal></entry>
404 <entry><literal>hw.ixgbe.rx_process_limit</literal></entry>
405 <entry><literal>hw.ix.rx_process_limit</literal></entry>
409 <entry><literal>hw.ixgbe.tx_process_limit</literal></entry>
410 <entry><literal>hw.ix.tx_process_limit</literal></entry>
414 <entry><literal>hw.ixgbe.enable_msix</literal></entry>
415 <entry><literal>hw.ix.enable_msix</literal></entry>
419 <entry><literal>hw.ixgbe.num_queues</literal></entry>
420 <entry><literal>hw.ix.num_queues</literal></entry>
424 <entry><literal>hw.ixgbe.txd</literal></entry>
425 <entry><literal>hw.ix.txd</literal></entry>
429 <entry><literal>hw.ixgbe.rxd</literal></entry>
430 <entry><literal>hw.ix.rxd</literal></entry>
434 <entry><literal>hw.ixgbe.unsupported_sfp</literal></entry>
435 <entry><literal>hw.ix.unsupported_sfp</literal></entry>
441 <para>Be sure to update &man.loader.conf.5; if using the
442 old tunables before upgrading to
443 &os; &release.current;.</para>
445 <para revision="270061">The &man.if.nf10bmac.4; driver has
446 been merged from &os;-CURRENT to support the NetFPGA-10G
447 Embedded CPU Ethernet Core.</para>
449 <para revision="270297">The &man.cxgbe.4; driver has been
450 updated to support &man.netmap.4; for the T5 10G/40G
453 <para revision="270509">The &man.vtnet.4; driver has been
454 updated to support &man.netmap.4;.</para>
456 <para revision="270514">The &man.urtwn.4; driver has been
457 updated to support the ASUS USB-AC51 wireless card.</para>
459 <para revision="270631">The &intel; XL710 ethernet
460 controller driver, <literal>ixlv(4)</literal>, has been
461 merged from &os;-CURRENT.</para>
465 <sect3 xml:id="net-proto">
466 <title>Network Protocols</title>
468 <para revision="265946">Support for the UDP-Lite protocol
469 (RFC 3828) has been added to the IPv4 and IPv6
472 <para revision="267771">A bug in &man.sctp.4; that would allow
473 two listening sockets bound to the same port has been
477 <sect3 xml:id="disks">
478 <title>Disks and Storage</title>
480 <para revision="260385" contrib="sponsor" sponsor="&ix;">The
481 &man.geom.4; got I/O direct dispatch support.
482 When safety requirements are met, it allows to avoid passing
483 I/O requests to GEOM g_up/g_down thread, executing them directly
484 in the caller context. That allows to avoid CPU bottlenecks in
485 g_up/g_down threads, plus avoid several context switches per I/O.
488 <para revision="260385" contrib="sponsor" sponsor="&ix;">The
489 &man.geom.4; RAID driver has been
490 updated to support unmapped I/O.</para>
492 <para revision="260387" contrib="sponsor" sponsor="&ix;">The
493 &man.cam.4; got finer-grained locking, direct dispatch and
495 Combined with &man.geom.4; direct dispatch that allows to
496 reduce lock congestion and improve SMP scalability of the
500 <para revision="260478">The &man.geom.8;
501 <literal>GEOM_MULTIPATH</literal> class got automatic live
502 resize support.</para>
504 <para revision="260857">The &man.virtio_blk.4; driver has been
505 updated to support unmapped I/O.</para>
507 <para revision="260858">The &man.virtio_scsi.4; driver has been
508 updated to support unmapped I/O.</para>
510 <para revision="264522">Support for LUN-based CD changers has
511 been removed from the &man.cd.4; driver.</para>
513 <para revision="264734">Support for 9th generation HP host bus
514 adapter cards has been added to &man.ciss.4;.</para>
516 <para revision="265388" contrib="sponsor" sponsor="&lsi;">The
517 &man.mpr.4; device has been added,
518 providing support for LSI Fusion-MPT 3 12Gb SCSI/SATA
521 <para revision="265922" contrib="sponsor" sponsor="&lsi;">The
522 &man.mrsas.4; driver has been added,
523 providing support for LSI MegaRAID SAS controllers. The
524 &man.mfi.4; driver will attach to the controller, by default.
525 To enable &man.mrsas.4; add
526 <literal>hw.mfi.mrsas_enable=1</literal> to
527 <filename>/boot/loader.conf</filename>, which turns off
528 &man.mfi.4; device probing.</para>
531 <para>At this time, the &man.mfiutil.8; utility and
533 <application>MegaCLI</application> and
534 <application>StorCli</application> do not work with
535 &man.mrsas.4;.</para>
538 <para revision="266608">Fixed accounting of BIO_FLUSH operation
539 in &man.geom.8; <literal>GEOM_DISK</literal> class</para>
541 <para revision="266610">The &man.gstat.8;
542 utility now has a <literal>-o</literal> option, to
543 display "other" operatins (e.g. BIO_FLUSH).</para>
545 <para revision="267084">The &man.mfi.4; driver has been
546 updated to include support for unmapped I/O.</para>
548 <para revision="267457">The &man.hpt27xx.4; driver has been
549 updated with various vendor-supplied bug fixes.</para>
551 <para revision="270130" contrib="sponsor"
552 sponsor="&citrix.rd;">Support for unmapped I/O has been added
553 to the &man.xen.4; <literal>blkfront</literal> driver.</para>
555 <para revision="259328" contrib="sponsor" sponsor="&ff;">The
556 &man.geom.8; <literal>label</literal> class is now aware of
557 resized partitions. This corrects an issue where
558 <command>geom resize</command> would resize the partition,
559 but the label provider in <filename
560 class="directory">/dev/gptid/</filename> would not be
563 <para revision="260502">The &man.gmirror.8;
564 utility now has a <literal>resize</literal> command, making
565 it easier to resize the size of a mirror when all of its
566 components have been replaced.</para>
568 <para revision="262967">Support for MegaRAID Fury cards has been
569 added to the &man.mfi.4; driver.</para>
571 <para revision="263024">The &man.aacraid.4; driver has been
572 updated to version 3.2.5.</para>
574 <para revision="265536">The <literal>GEOM_VINUM</literal> option
575 is now able to be built both directly into the kernel or as
576 a &man.kldload.8; loadable module.</para>
578 <para revision="265912">The &man.geom.8;
579 <literal>GEOM_PART</literal> class has been updated to
580 support automatic partition resizing. Changes to the
581 partition size are not saved to disk until
582 <command>gpart commit</command> is run, and prior to saving,
583 can be reverted with <command>gpart undo</command>.</para>
585 <para revision="266220">The &man.geom.uncompress.4; module is
586 built by default which, similar to &man.geom.uzip.4;,
587 provides support for compressed, read-only disk
590 <para revision="268091">Support for the
591 <literal>disklabel64</literal> partitioning scheme has been
592 added to &man.gpart.8;.</para>
594 <para revision="270552">A new &man.sysctl.8; and
595 &man.loader.8; tunable,
596 <literal>kern.geom.part.mbr.enforce_chs</literal> has been
597 added to the &man.geom.8; <literal>MBR</literal> partition
598 class. When set to a non-zero value,
599 <literal>GEOM_PART_MBR</literal> will automatically
600 recalculate the user-specified offset and size for alignment
601 with the disk geometry.</para>
603 <para contrib="sponsor" sponsor="&ix;">CAM Target Layer (CTL)
604 got many impromenets:</para>
607 <para>Support for UNMAP, WRITE SAME, COMPARE AND WRITE, XCOPY
608 and some other SCSI commands was added to support VMWare VAAI
609 and Microsoft ODX storage acceleration.</para>
612 <para revision="265642">READ/WRITE size limitations were removed
613 by supporting multiple data moves per command.</para>
616 <para revision="268556">Finer-grained per-LUN locking and
617 multiple worker threads for better SMP scapability.</para>
620 <para revision="269297">Memory consumption reduced by several
621 times by disabling some never used functionality.</para>
624 <para revision="269298">The maximum number of
625 <acronym>SCSI</acronym> ports increased from 32 to 128</para>
628 <para revision="269429">Improved ZVOL integration for better
635 <title>File Systems</title>
637 <para revision="260338">The
638 <literal>vfs.zfs.zio.use_uma</literal> &man.sysctl.8; has been
639 re-enabled. On multi-CPU machines with enough RAM, this can
640 easily double &man.zfs.8; performance or reduce CPU usage in
641 half. It was originally disabled due to memory and
642 <acronym>KVA</acronym> exhaustion problem reports, which
643 should be resolved due to several change in the VM
646 <para revision="260178" contrib="vendor"
647 vendor="&netflix;">A new flag, <literal>-R</literal>,
648 has been added to the &man.fsck.ffs.8; utility. When used,
649 &man.fsck.ffs.8; will restart itself when too many critical
650 errors have been detected.</para>
652 <para revision="263407">The &man.zfs.8; filesystem has been
653 updated to implement <quote>bookmarks</quote>. See
654 &man.zfs.8; for further details.</para>
656 <para revision="266122">The &man.zfs.8; filesystem has been
657 updated to allow tuning the minimum <quote>ashift</quote>
658 value when creating new top-level virtual devices (vdevs).
659 To set the minimum ashift value, for example when creating
660 a &man.zpool.8; on <quote>Advanced Format</quote> drives,
661 set the <literal>vfs.zfs.min_auto_ashift</literal>
662 &man.sysctl.8; accordingly.</para>
664 <para revision="266612">The <literal>libzfs</literal> thread
665 pool <acronym>API</acronym> has been imported from
666 OpenSolaris, and adapted for &os;. This change allows
667 parallel disk scanning, which can reduce &man.zpool.8;
668 overall import time in some workloads.</para>
670 <para revision="269651">The &man.restore.8; utility has been
671 updated to prevent assertion failures when restoring
672 a <acronym>UFS</acronym> filesystem dump to
673 a <acronym>ZFS</acronym> filesystem by writing restored
674 files in block sizes that are a multiple of 1024.</para>
676 <para revision="269774">Two &man.sysctl.8;s have been added
677 to the &man.zfs.8; filesystem:</para>
682 <literal>vfs.zfs.mg_fragmentation_threshold</literal>: The
683 percentage of the metaslab group size that should be
684 considered eligible for allocation, unless all metaslab
685 groups within the metaslab class have also crossed this
691 <literal>vfs.zfs.metaslab.fragmentation_threshold</literal>: The
692 maximum percentage of metaslab fragmentation level to
693 keep their active state</para>
697 <para revision="269846">The default &man.zfs.8;
698 <acronym>ARC</acronym> hash table size has been increased,
699 and a new &man.loader.8; tunable,
700 <literal>vfs.zfs.arc_average_blocksize</literal>, has been
701 added. Previously, the hash table could be too small, which
702 would lead to long hash chains and limit performance for
704 <literal>vfs.zfs.arc_average_blocksize</literal> tunable
705 allows overriding the default block size. The previous
706 default was 65536, and default of the new &man.loader.8;
707 tunable is 8192.</para>
709 <para revision="270157">The Fast File System
710 (<acronym>FFS</acronym>) has been updated to support
711 multi-threaded soft updates. Previously, soft updates were
712 handled by a single thread, and as of this change, now have
713 one thread per <acronym>FFS</acronym> mountpoint.</para>
717 <sect2 xml:id="userland">
718 <title>Userland Changes</title>
720 <para revision="260177" contrib="sponsor"
721 sponsor="&netflix;">A new flag is added to &man.camcontrol.8;,
722 <literal>-b</literal>, which outputs the existing buses and
723 their parents.</para>
725 <para revision="262075">The &man.newsyslog.8; utility has been
726 updated to rotate files based on the actual file size instead
727 of the blocks on disk. This matches the behavior documented
728 in &man.newsyslog.conf.5;.</para>
730 <para revision="262384">The location of the &man.rctl.8;
731 configuration file can now be overridden in &man.rc.conf.5;.
732 To use a non-default location, set
733 <literal>rctl_rules</literal> in &man.rc.conf.5; to the
734 location of the file.</para>
736 <para revision="262855">The <application>ATF</application> test
737 suite has been updated to version 0.20.</para>
739 <para revision="263019">The <literal>libucl</literal> library
740 (Unified Configuration Library) has been merged from
743 <para revision="263020">The &man.pkg.7; bootstrapping utility
744 has been synced with the version in &os;-CURRENT.</para>
746 <para revision="263403">The &man.zfs.8; userland utility has
747 been updated to include aliases for
748 <command>snapshot</command>, which allows use of <command>zfs
749 list -t snap</command> and <command>zfs
750 snap</command>.</para>
752 <para revision="263405">The &man.zfs.8; userland utility has
753 been updated to include a new flag to <command>zfs
754 list</command>, <literal>-p</literal>, which when specified,
755 prints the output in a parsable format.</para>
757 <para revision="263783">The Blowfish password format
758 implementation updated. Support for $2b$ has
759 been added, allowing use of passwords greater than 256
760 characters long.</para>
762 <para revision="264497">The &man.iconv.3; library has been
763 updated to match NetBSD, providing several bug fixes.</para>
765 <para revision="265265">The &man.date.1; utility has been
766 updated to include a new flag, <literal>-R</literal>, which
767 prints the date and time output as specified in RFC
770 <para revision="265533">The &man.bc.1; utility has been updated
771 to version 1.1, in sync with the version in OpenBSD.</para>
773 <para revision="265604" contrib="vendor"
774 vendor="&netflix;">The &man.pmcstat.8; utility has been
775 updated to include a new flag, <literal>-a</literal>, which
776 when specified, produces a full stack track on the sampled
779 <para revision="265701">The &man.netstat.8; and &man.route.8;
780 utilities have been updated to include a shorthand equivalent
781 to the <literal>-f inet</literal> and <literal>-f
782 inet6</literal> address specifiers, <literal>-4</literal>
783 and <literal>-6</literal>, respectively.</para>
785 <para revision="265879">The &man.crypt.3; library now defaults
786 to SHA512 for password hashing.</para>
788 <para revision="266014">The &man.gvinum.8; utility has been
789 updated to allow forceful configuration reset with the
790 <literal>-f</literal> flag. Additionally, a bug that would
791 prevent <literal>-f</literal> from properly creating
792 a &man.gvinum.8; configuration has been fixed.</para>
794 <para revision="266029">The &man.login.conf.5; file now takes
795 precedence over the shell-specific environment files. In
796 particular, the <literal>PATH</literal>,
797 <literal>BLOCKSIZE</literal> variables are commented from
798 <filename>/usr/share/skel/dot.profile</filename>, and the
799 <literal>path</literal>, <literal>BLOCKSIZE</literal>, and
800 <literal>umask</literal> variables have been commented from
801 <filename>/usr/share/skel/dot.cshrc</filename>.</para>
803 <para revision="266272">The &man.binmiscctl.8; userland utility
804 and related image activator features have been merged from
807 <para revision="266279">The &man.ps.1; utility has been
808 updated to include the <literal>-J</literal> flag, used to
809 filter output by matching &man.jail.8; IDs and names.
810 Additionally, argument <literal>0</literal> can be used to
811 <literal>-J</literal> to only list processes running on the
814 <para revision="266280">The &man.top.1; utility has been updated
815 to filter by &man.jail.8; ID or name, in followup to the
816 &man.ps.1; change in <literal>r265229</literal>.</para>
818 <para revision="266610">The &man.gstat.8; utility has been
819 updated to include a new flag, <literal>-o</literal>. When
820 set, &man.gstat.8; will display statistics for operations
821 such as <literal>BIO_FLUSH</literal>.</para>
823 <para revision="266632">The &man.fetch.3; library has been
824 updated to look for root <acronym>SSL</acronym> certificates
825 in <filename class="directory">/usr/local/etc/ssl/</filename>
827 class="directory">/etc/ssl/</filename>.</para>
829 <para revision="266715">The &man.clang.1;/llvm suite has been
830 updated to version 3.4.1.</para>
832 <para revision="266816">The Blowfish password format
833 has been changed to $2b$ by default.</para>
835 <para revision="266888">The amount of data collected for
836 &man.hwpmc.4; has been updated to work with modern processors
837 and larger amounts of available memory.</para>
839 <para revision="266890">The &man.pmcstat.8; utility has been
840 updated to include a new flag, <literal>-l</literal>, which
841 ends event collection after the specified number of
844 <para revision="266953">The &man.mergemaster.8; utility has
845 been updated to avoid printing
846 <quote><filename>/var/tmp/temproot</filename>
847 disappeared</quote> if there is nothing to compare.</para>
849 <para revision="267056">The &os; installer, &man.bsdinstall.8;,
850 has been updated to include optional
851 &man.geli.8;-encrypted or &man.gmirror.8;-mirrored swap
852 devices when installing onto a full &man.zfs.8; filesystem.
853 Additionally, the parent &man.zfs.8; dataset is now configured
854 with <literal>lz4</literal> compression enabled.</para>
856 <para revision="267113">The default &man.newsyslog.conf.5; now
857 includes files in the
858 <filename>/etc/newsyslog.conf.d/</filename> and
859 <filename>/usr/local/etc/newsyslog.conf.d/</filename>
860 directories by default for &man.newsyslog.8;.</para>
862 <para revision="267161">The &man.realpath.1; utility has been
863 updated to return <literal>ENOTDIR</literal> on paths
864 components <quote>.</quote> and <quote>..</quote> that are
865 not directories, such as <filename
866 class="directory">/dev/null/.</filename> or <filename
867 class="directory">/dev/null/..</filename>.</para>
869 <para revision="267236">A new flag, <quote>onifconsole</quote>
870 has been added to <filename>/etc/ttys</filename>. This allows
871 the system to provide a login prompt via serial console if the
872 device is an active kernel console, otherwise it is equivalent
873 to <literal>off</literal>.</para>
875 <para revision="267341">Support for legacy
876 <acronym>PCI</acronym> devices has been removed from
877 &man.bhyve.8;.</para>
879 <para revision="267450">The &man.bhyve.8; userland utility
880 has been updated to include SMBIOS support. A new flag has
881 been added, <literal>-U</literal>, which allows specifying the
882 UUID of the guest in the System Information structure.</para>
884 <para revision="267734">The &os; Project has migrated
885 from the <application>GNATS</application> bug tracking system
886 to <application>Bugzilla</application>. The &man.send-pr.1;
887 utility used for submitting problem reports has been replaced
888 with a stub shell script that instructs to use the Bugzilla
889 web interface.</para>
891 <para revision="267747">The &man.patch.1; utility has been
892 updated to include a <literal>--dry-run</literal> flag, which
893 is equivalent to <literal>--check</literal> and
894 <literal>-C</literal>.</para>
896 <para revision="267878">A bug in &man.bsdgrep.1; that would
897 prevent patterns from being matched under certain conditions
898 has been fixed.</para>
900 <para revision="267979">The &man.procstat.1; utility has been
901 updated to include two new flags, <literal>-r</literal> and
902 <literal>-H</literal>. When <literal>-r</literal> is
903 specified, &man.procstat.1; will print current resource usage
904 about the process(es). When <literal>-H</literal> is
905 specified, &man.procstat.1; will print information about
906 threads rather than the process(es).</para>
909 <para>The <literal>-H</literal> flag is currently only used
910 with <literal>-r</literal> to display resource usage for
911 individual threads, rather than the entire process.</para>
914 <para revision="268019">The &man.sed.1; utility has been
915 updated to include a new flag, <literal>-u</literal>, which
916 enables unbuffered output when specified.</para>
918 <para revision="268161">The &man.mkimg.1; utility has been
919 merged from &os;-CURRENT.</para>
921 <para revision="268700" contrib="sponsor"
922 sponsor="&spectralogic;">The &man.camcontrol.8; has been
923 updated to include a new <literal>persist</literal> command,
924 which allows issuing <command>SCSI PERSISTENT RESERVE
925 IN</command> and <command>SCSI PERSISTENT RESERVE
926 OUT</command>.</para>
928 <para revision="268791">The &man.gstat.8; utility has been
929 updated to include a new flag, <literal>-p</literal>, which
930 displays only physical providers when specified.</para>
932 <para revision="268903">The &man.kldstat.8; utility has been
933 updated to allow <literal>-q</literal> to be specified when
934 also specifying <literal>-n
935 <replaceable>module.ko</replaceable></literal>.</para>
937 <para revision="269177">The &man.mkimg.1; utility has been
938 updated to include support for both fixed- and
939 dynamically-allocated images for the <acronym>VHD</acronym>
940 and <acronym>VMDK</acronym> formats.</para>
942 <para revision="269220">The &man.random.4; entropy collection
943 script, <filename>/usr/libexec/save-entropy</filename>, no
944 longer runs within &man.jail.8; environments.</para>
946 <para revision="269397">The &man.bhyve.8; wrapper script,
947 <filename>/usr/share/examples/bhyve/vmrun.sh</filename>,
948 has been synced with &os;-CURRENT.</para>
950 <para>This update includes:</para>
954 <para>A new flag, <literal>-e</literal>, has been added,
955 which is used to set &man.loader.8; environment
960 <para>A new flag, <literal>-C</literal>, has been added,
961 which is used to specify the guest console device.</para>
965 <para>A new flag, <literal>-H</literal>, has been added,
966 which is used to pass the host path to
967 &man.bhyveload.8;.</para>
971 <para>Support for multiple disk and &man.tap.4; devices
972 has been added.</para>
976 <para>The <literal>-I</literal> flag has been
981 <para revision="269398">The &man.nfsd.8; server update to 4.1,
982 adding support for RFC5661, has merged from
985 <para revision="269432" arch="ia64">The serial terminals
986 <filename>ttyu0</filename> and <filename>ttyu1</filename> have
987 been updated to <literal>onifconsole</literal> by default in
988 &man.ttys.5;, which either can be the serial console,
989 depending on the platform.</para>
991 <para revision="269800">The &man.ping6.8; utility has been
992 updated to reset <literal>itimer</literal> when the maximum
993 number of packets to send have been reached. This prevents
994 &man.ping6.8; from exiting when the interval in set to a small
995 value and a low number of packets to send has been
998 <para revision="269805">The &man.jail.8; utility has been
999 updated to support extra &man.ifconfig.8; arguments for the
1000 <literal>ip4.addr</literal> and <literal>ip6.addr</literal>
1001 parameters. This change allows &man.carp.4; interfaces to
1002 be used within the &man.jail.8;.</para>
1004 <para revision="269946">Support for generating and compiling
1005 <acronym>USDT</acronym> <application>DTrace</application>
1006 probes has been improved. <application>DTrace</application>
1007 <acronym>USDT</acronym> files are now handled similar to
1008 &man.lex.1; and &man.yacc.1; files, meaning support for
1009 handling <application>D</application> files as part of the
1010 build process is built into the <literal>SRCS</literal>
1011 &man.make.1; environment variable.</para>
1013 <para revision="269968">The &man.iscsictl.8; utility has been
1014 updated to include a new flag, <literal>-M</literal>, which
1015 allows modifying the <acronym>iSCSI</acronym> session
1016 parameters without requiring the session to be removed and
1019 <para revision="270043">The &man.mount.nfs.8; utility has been
1020 updated to support specifying the NFS version as
1021 a <literal>key=<replaceable>value</replaceable></literal> pair
1022 argument to the <literal>-o</literal> flag. For example, to
1023 specify NFS version 4, the syntax to use is
1024 <literal>-o vers=4</literal>.</para>
1026 <para revision="270242" contrib="sponsor"
1027 sponsor="&spectralogic;">The &man.devd.8; client socket type
1028 has been changed to <literal>SOCK_SEQPACKET</literal>,
1029 providing sequential packet support.</para>
1031 <para revision="270401">Support for the <quote>account</quote>
1032 facility has been added to the &man.pam.group.8;
1035 <sect3 xml:id="rc-scripts">
1036 <title><filename>/etc/rc.d</filename> Scripts</title>
1038 <para revision="264438">The <filename>network.subr</filename>
1039 &man.rc.8; script has been updated to loosen the requirement
1040 of listing network aliases in numeric order. Previously,
1042 <literal>_alias<replaceable>2</replaceable></literal>
1043 would not be created if
1044 <literal>_alias<replaceable>1</replaceable></literal> was
1047 <para revision="268098">The &man.service.8; utility has been
1048 updated to check that the &man.rc.d.8; directory exists
1049 before traversing the directory.</para>
1053 <sect2 xml:id="contrib">
1054 <title>Contributed Software</title>
1056 <para revision="263285">The &man.xz.1; utility has been updated
1057 to a post-5.0.5 snapshot.</para>
1059 <para revision="264377"><application>OpenSSH</application> has
1060 been updated to version 6.6p1.</para>
1062 <para revision="264911">The &man.nc.1; utility has been updated
1063 to match the version in OpenBSD 5.5.</para>
1065 <para revision="266692"><application>Sendmail</application>
1066 has been updated to 8.14.9.</para>
1068 <para revision="267477">The timezone database has been updated
1069 to version tzdata2014e.</para>
1071 <para revision="268515">The &man.file.1; utility and
1072 &man.libmagic.3; library have been updated to 5.19.</para>
1074 <para revision="268899">The &man.byacc.1; parser has been
1075 updated to version 20140422.</para>
1077 <para revision="269024" contrib="sponsor"
1078 sponsor="&darpa_afrl;">The &man.lldb.1; debugging library has
1079 been updated to the r202189 snapshot.</para>
1081 <para revision="269257">The &man.unbound.8; caching resolver and
1082 <literal>ldns</literal> have been updated to version
1085 <para revision="269686"><application>OpenSSL</application> has
1086 been updated to version 1.0.1i.</para>
1088 <para revision="269847">The <quote>lite</quote> version of
1089 <application>Subversion</application> included in the
1090 &os; base system and its dependencies have been
1095 <para><application>apr</application> has been
1096 updated to version 1.5.1.</para>
1100 <para><application>apr-util</application> has been
1101 updated to version 1.5.3.</para>
1105 <para><application>serf</application> has been
1106 updated to version 1.3.7.</para>
1110 <para><application>svnlite</application> has been
1111 updated to version 1.8.10.</para>
1115 <para revision="270026">The &man.nvi.1; editor has been
1116 update to version 2.1.2-c80f493b038.</para>
1118 <para revision="270031">The &man.fparseln.3; library has
1119 been updated to version 1.7.</para>
1121 <para revision="270415">The <application>lukemftpd</application>
1122 <acronym>FTP</acronym> server has been removed from the
1123 &os; base system.</para>
1126 <sect2 xml:id="ports">
1127 <title>Ports/Packages Collection Infrastructure</title>
1133 <sect2 xml:id="releng">
1134 <title>Release Engineering and Integration</title>
1136 <para revision="263028">The &man.services.mkdb.8; utility has
1137 been updated to include endianness awareness, allowing the
1138 <filename>services.db</filename> database to be created as
1139 part of the release build, regardless of native- or
1140 cross-built releases.</para>
1143 <sect2 xml:id="doc">
1144 <title>Documentation</title>
1151 <sect1 xml:id="upgrade">
1152 <title>Upgrading from Previous Releases of &os;</title>
1154 <para arch="amd64,i386">Binary upgrades between RELEASE versions
1155 (and snapshots of the various security branches) are supported
1156 using the &man.freebsd-update.8; utility. The binary upgrade
1157 procedure will update unmodified userland utilities, as well as
1158 unmodified GENERIC or SMP kernels distributed as a part of an
1159 official &os; release. The &man.freebsd-update.8; utility
1160 requires that the host being upgraded have Internet
1161 connectivity.</para>
1163 <para>Source-based upgrades (those based on recompiling the &os;
1164 base system from source code) from previous versions are
1165 supported, according to the instructions in
1166 <filename>/usr/src/UPDATING</filename>.</para>
1169 <para>Upgrading &os; should only be attempted after
1170 backing up <emphasis>all</emphasis> data and configuration